求翻译：他性格内向，意志坚强，有较强的社会生活能力，，后来投身于军队和参与社会活动，在严酷的事实面前逐步认识到上层统治阶级的腐败和群众的力量。是什么意思？

Introverted, strong-willed, there is a strong social life, and later to join the armed forces and participation in social activities, gradually come to realize in the face of the harsh facts of corruption and power of the masses of the upper ruling class.

His strong personality, and to have a higher capacity, and the social life, he devoted himself to the army and participate in social activities, and in the harsh face of the facts to the upper ruling class step-by-step understanding of corruption and the strength of the masses.

His disposition introversion, the will is strong, has the strong social life ability, afterwards joined in the army and the participation social activity, realized gradually in front of the severe fact to the upper formation ruling class's corruption and populace's strength.

He is introverted, a strong will, strong ability of social life, and later engaged in the armed forces and to participate in social activities, gradually realized before the harsh facts of corruption in the upper ruling class and the power of the masses.

正在翻译，请等待...